Estimate your daily caffeine limit and a practical single-dose range based on your body weight, age, pregnancy status, and activity level.
Enter Your Information
Your Caffeine Recommendation
How to Use the Caffeine Calculator
Use the Caffeine Calculator to estimate your daily caffeine intake based on the amount and type of caffeine-containing drinks or supplements you consume.
Enter Your Caffeine Source
Select or enter the caffeine source you are consuming, such as coffee, tea, energy drinks, soda, pre-workout, or another caffeine-containing product.
Enter the Amount
Enter the serving size or caffeine amount shown on the product label. Use the correct unit if the calculator provides different measurement options.
Add Your Servings
Enter how many servings you normally consume during the day. Include multiple caffeine sources when calculating your total daily intake.
Calculate Your Caffeine Intake
Click the calculate button to estimate your total caffeine intake and review the result in milligrams (mg).
Understand Your Result
Your result is an estimate of your total daily caffeine intake based on the information you entered. Caffeine amounts can vary between brands, products, and serving sizes, so check the product label whenever possible.
Learn More About the Caffeine Calculator
Read the complete guide to learn how caffeine intake is estimated, how common caffeine sources compare, and which factors can affect your daily caffeine consumption.
Read the Complete Caffeine Calculator Guide →Caffeine Calculator Frequently Asked Questions
Find quick answers about caffeine intake, common caffeine sources, daily consumption, and how to understand your calculator result.
The Caffeine Calculator provides an estimate of your total daily caffeine intake based on the caffeine sources, amounts, and servings you enter. It is designed as an educational planning tool.
Caffeine content varies depending on the type of coffee, serving size, preparation method, and brand. For the most accurate estimate, check the product label or use the caffeine amount provided by the manufacturer.
Common caffeine sources include coffee, tea, energy drinks, soda, pre-workout products, chocolate, and some dietary supplements or medications. Caffeine content can differ significantly between products.
Only drinks and products containing caffeine contribute to your caffeine intake. When calculating your daily total, include all caffeine-containing beverages and supplements consumed throughout the day.
Yes. Caffeine can affect sleep, and sensitivity varies between people. The timing and amount of caffeine consumed may influence how it affects sleep quality and how easily you fall asleep.
The calculator provides an estimate rather than an exact measurement. Actual caffeine content can vary by brand, product, serving size, preparation method, and labeling. Use product labels whenever available for more precise information.
Yes. If your pre-workout product contains caffeine, include its caffeine amount when estimating your total daily intake. Check the supplement label for the caffeine content per serving.